Crane Aerospace & Electronics Power Solutions
sMrt28 singlꢂ, Dꢀꢄl ꢄnd tꢃiplꢂ spꢄꢇꢂ Dc/Dc convꢂꢃꢁꢂꢃꢈ
28 VOLt Iꢆꢅut – 35 Watt – sꢅace quaLIFIeD
Electrical Characteristics: -55°C to +125°C T , 28 VDC Vin, 100% load, unless otherwise specified.
C
DUAL OUTPUT MODELS
SMRT2805D
SMRT2812D
SMRT2815D
unItS
parameter
COnDItIOnS
VO u t a
MIꢀ
TYP
5.00
5.00
—
MAX
MIꢀ
TYP
MAX
MIꢀ
TYP
MAX
Output VOltage
Output Current
4.90
4.90
—
5.10
5.10
3.0
11.76 12.00 12.24 14.70 15.00 15.30
11.76 12.00 12.24 14.70 15.00 15.30
VDC
VO u t b
2, 3
VO u t a
—
—
—
—
1.46
1.46
—
—
—
—
1.17
1.17
A
VO u t b
—
—
3.0
2, 3
Output pOwer
VO u t a
VO u t b
0
—
—
—
—
5
15
15
0
—
—
—
5
17.5
17.5
200
25
0
—
—
—
5
17.5
17.5
180
30
W
VIn = 19 tO 56 VDC
0
0
0
Output rIpple
10 khz - 20 mhz
—
—
—
—
200
30
—
—
—
—
—
—
—
—
mV p-p
mV
2
lIne regulatIOn
V
= 19, 50 VDC
Iꢀ
lOaD regulatIOn
40
5
50
5
40
mV
V
= 19, 50 VDC
—
70
—
100
—
70
Iꢀ
1
tOtal regulatIOn
all COnDItIOnS OF
lIne, lOaD, agIng,
temp anD raDIatIOn
V
±4.6
—
±5.4
±10.9
—
±13.1 ±14.0
—
±16.0
VDC
OUT
4
Input VOltage
COntInuOuS
19
0
28
—
—
—
56
80
19
0
28
—
—
—
56
80
19
0
28
—
—
—
56
80
VDC
V
tranSIent 100 ms
4
Input Current
InhIbIteD
—
—
50
—
—
50
—
—
50
mA
nO lOaD
110
110
110
Input rIpple
Current
mA p-p
10 kHz - 20 MHz
—
10
50
—
10
150
—
10
50
4
eFFICIenCy
66
—
—
—
—
—
—
—
—
—
—
28
75
—
—
—
—
—
—
—
—
—
—
20
75
—
—
—
—
—
—
—
—
—
—
20
%
W
5, 6
lOaD Fault
pOwer DISSIpatIOn
1
reCOVery
25
25
25
ms
Step lOaD
reSpOnSe
tranSIent
reCOVery
±450
3
±450
2
±575
3
mV pk
ms
6, 7, 8
Step lIne
reSpOnSe
19 - 50 - 19 V
tranSIent
Iꢀ
—
—
—
—
—
—
—
—
±500
4
—
—
—
—
—
—
—
—
±1000
3
—
—
—
—
—
—
—
—
±700
4
mv pk
ms
1, 6, 7
reCOVery
9
Start-up
Delay
nO lOaD anD Full
25
20
25
ms
OVerShOOt
50
350
150
mV pk
1
CapaCItIVe lOaD
unCOnDItIOnally
Stable, Start-up
Delay InCreaSeD
t
= 25°C
—
—
5000
—
—
5000
—
—
5000
µF
C
ꢀotes
1. ꢊꢀꢄꢃꢄnꢁꢂꢂd by dꢂꢈign, noꢁ ꢁꢂꢈꢁꢂd.
2. The specified maximum current/power is available from each output.
3. To maintain tight regulation over the full input voltage range a minimum load of 2% of full load should be used on all outputs.
4. Converters meet MIL-STD-461 specification revisions for conducted emissions C-CE03 and D-/E-/F-CE-102. The actual value of input ripple current is much less, the
limit in the characteristic table is based on measurement resolution..
5. Maximum power dissipation when output is shorted.
6. Recovery time is measured from application of the transient to point at which VOUT is within 1% of VOUT at final value.
7. Transition time >10 µs.
8. Half load to/from full load.
9. Measured from release of inhibit or input voltage step
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SMRT28 Rev E - 20100216
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